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Acaricide/Insecticide Evaluation, 1996

Acaricide/Insecticide Evaluation, 1996 Downloaded from https://academic.oup.com/amt/article-abstract/22/1/4/4639708 by DeepDyve user on 21 July 2020 4 Arthropod Management Tests, Vol. 22 A: POME FRUITS No. ERM/leaf No. STLM mines/5 min Rate Dates of Treatment form/acre lb AI application 11 Jul 30 Jul l.Endosulfan50WS B 1360g 1.50 P,PF Savey 50WP 85g 0.094 P Imidan 70WP 1360g 2.10 PF.1C Confirm 70WP + 198g 0.31 474ml 2C,3C,6C,7C 2.1b LatronB-1956 11.0a Imidan 70WP 1022g 1.58 4C,5C 2. EXP80667A 70WP 32g 0.05 PF,2C,3C 4.8ab 0.7c 3. EXP80667A 70WP 48g 0.075 PF,2C 7.6a 0.5c 64g 0.10 7.2a 0.8c 4. EXP80667A 70WP PF,2C,3C 852ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947ml 0.80 2C,3C,6C-8C 3.9ab 2.2b 6. Provado 1.6F 164ml 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 5.6a 1.8bc 7. Provado 70WG 45g 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 6.0a 2.5b 8. Provado 1.6F 164ml 0.07 PF,2C Guthion 3F 852ml 0.67 P F Confirm 70WP + 198g 0.31 LatronB-195 6 474ml 1C,2C,4C,6C 6.1a 0.8c 9. Untreated check 3.8ab 24.7a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious' Henry W. Hogmire and Tim Winfield (5A) European red mite (ERM); Panonychus ulmi (Koch) WV U Experiment Farm White apple leafhopper (WALH); Typhlocyba pomaria McAtee P.O. Box 609 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) Kearneysville, WV 25430 Phone: (304) 876-6353 FAX: (304) 876-6034 ACARICIDE/INSECTICIDE EVALUATION, 1996: This experiment was conducted in a 2.1 acre block of 11-yr-old trees on M 7A rootstock. The trees measured 11.5 ft. in height and 10 ft. in width and were planted at a spacing of 12 x 18 ft. The experimental design consisted of 4 replications of 9 to 12-tree plots (3 rows x 3 or 4 trees/rows) in a randomized block design. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates (stages) of application were 18 Apr (tight cluster) for Apollo and Damoil, 22 Apr (pink) for Savey, and 13 May (1 week after petal fall) for remaining treatments. Other materials applied separately to all treatments were COCS, Dithane, Guthion, Lorsban, Nova, Penncap-M, Penncozeb, Rubigan, Topsin-M, and Ziram. Treatments were evaluated by taking arthropod pest counts from the periphery of the center tree in each plot periodically during the season. Control of ERM was evaluated by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. WAL H control was determined by counting nymphs on the underside of 25 leaves/tree. Treatment effect against STLM was determined by counting tissue-feeding mines observed during a 5 minute period/tree. Agri-Mek + Damoil and Savey provided the best control of ERM. Vydate, Carzol, and Agri-Mek + Damoil were the most effective treatments against first generation WALH, and Carzol provided the greatest reduction of the second generation. Agri-Mek + Damoil provided the best control of STLM. Agri-Mek + Damoil was more effective than Agri-Mek alone against all pests. No phytotoxicity was observed in any treatments. No. ERM Accumulated mite-days Rate Dates of Treatment form/acre lb AI application 6 Jun 26 Jun 17 Jul 1 Aug 6 Jun-1 Aug Apollo 50SC 118 ml 0.125 18 Apr 1.5bc 11.7a 7.0bc O.lab 382. la b Damoil 11.361 18 Apr 1.5bc 6.5ab 25.1a 0b 599.4a Savey 50WP 85 g 0.094 22 Apr 0.2d 0.7c 5.5cd 0b 113.6bc 0.0125 2.6abc 2.7b 14.3abc 0b 339.5ab Agri-Mek 0.15EC 316 ml 13 May Agri-Mek 0.15EC + 316 ml 0.0125 3788 ml 13 May 1.7abc 0.3c 1.8d O.lab 55.3c Damoil Vydate 2L 1421 ml 0.75 13 May l.Ocd 5.6ab 20.7ab O.lab 497.7a 454 g 0.92 9.0a 22.5a O.lab Carzol 92SP 13 May 4.0a 629.7a 5.5ab 15.6abc Untreated check 4.0a 0.2a 436.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05). Downloaded from https://academic.oup.com/amt/article-abstract/22/1/4/4639708 by DeepDyve user on 21 July 2020 A: POME FRUITS Arthropod Management Tests, Vol. 22 5 Rate Dates of Treatment form/acre lb AI 11 Jun 29 Jul application 21 May 28 May 21 Aug Apollo 50SC 118 ml 0.125 18 Apr Damoil 11.361 18 Apr Savey 50WP 85 g 0.094 22 Apr Agri-Mek0.15EC 316 ml 0.0125 13 May 3.5a 2.8a 10.3ab 2.0c 124.5b Agri-Mek0.15EC + 316 ml 0.0125 13 May 2.0a 0.3b 4.5b Od 25.8c Damoil 3788 ml Vydate 2L 1421 ml 0.75 13 May 0.3b 0b 5.5ab 1.3c 128.8b Carzol 92SP 454 g 0.92 13 May 0.3b 2.8a 0.3c 11.5b 264.5ab Untreated check 5.5a 4.8a 12.8a 21.8a 423.3a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious', 'Golden Delicious' Henry W. Hogmire and Tim Winfield (6A) White apple leafhopper (WALH); Typhlocyba pomaria McAtee WV U Experiment Farm Potato leafhopper (PLH); Empoasca fabae Harris P.O. Box 609 European red mite (ERM); Panonychus ulmi (Koch) Kearneysville, W V 25430 Oriental fruit moth (OFM); Grapholita molesta (Busck) Phone: (304) 876-6353 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) FAX: (304) 876-6034 SEVIN EVALUATION, 1996: This experiment was conducted in a 0.8 acre block of 16-yr-old trees on MM 106 rootstock. Trees measured 13.5 ft. in height and 14.5 ft. in width and were planted at a spacing of 18 X 24 ft. The experimental design consisted of a single plot of 5 rows X 5 trees/row for each of 2 spray treatments and a single 10 row X 3 trees/row untreated plot. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates of application were 7 May [petal fall (PF)], 22 May [first cover (IC)] , 11 Jun [second cover (2C)], 26 Jun [third cover (3C)], 11 Jul [fourth cover (4C)], 25 Jul [fifth cover (5C)], 7 Aug [sixth cover (6C)], 21 Aug [seventh cover (7C)], and 5 Sep [eighth cover (8C)]. Other materials applied separately to all treatments were Agri-Mycin, COCS, Dithane, Nova, Penncozeb, and Ziram. Treatment effect was determined by counting arthropod pests and injury on the periphery of 4 single-tree 'Delicious' repli­ cations in the center rows of each plot periodically during the season. Control of WALH was determined by counting nymphs on the underside of 25 leaves per tree. PLH was determined by counting injured terminals during a 5 minute period per tree. Effect of treatments against ERM was determined by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. Control of OFM was determined by counting injured terminals per tree. STLM control was evaluated by counting all tissue-feeding mines during a 5-minute period per tree. Provado and Sevin provided comparable control of WALH, but Provado resulted in a lower incidence of mines of STLM. There were no signifi­ cant differences among treatments in ERM levels at peak population. However, the treatment which included Sevin XLR PLUS had a higher ERM inci­ dence than the Guthion/Penncap-M treatment. Comparable control of OFM and PLH was provided by both spray treatments. No. WALH/25 leaves No. PLH injured terminals/5 min Rate Dates Treatment form/acre lb AI of application 21 May 23 May 20 Aug 20 Aug 1. Guthion 3F 852 ml 0.67 PF, IC, 4C, 5C Provado 1.6 F 164 ml 0.07 IC Penncap-M 2F 1420 ml 0.74 2C, 3C, 6C-8C 1.5a 0b 2.8ab 2.5b 2. Guthion 3F 852 ml 0.67 PF, 4C, 5C Sevin XLR PLUS 4SC 947 ml 1.00 IC , 3C, 6C Penncap-M 2F 1420 ml 0.74 2C,7C,8C 4.0a 0.3b 0.5b 1.8b 3. Untreated check 4.0a 1.8a 7.0a 123.3a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05). Rate Dates of Treatment form/acre lb AI application 3 Jul 16 Jul 3 Jul 5 Aug 1. Guthion 3F 852 ml 0.67 PF , IC, 4C , 5C Provado 1.6F 164 ml 0.07 I C Penncap-M 2F 1420 ml 0.74 2C, 3C, 6C-8C 10.9a 2.2b 2.0b 50.3b 2. Guthion 3F 852 ml 0.67 PF, 4C , 5C Sevin XLR PLUS 4SC 947 ml 1.00 IC , 3C, 6C Penncap-M 2F 1420 ml 0.74 2C, 7C, 8C 14.9a 8.2a 0.8b 109.8a 3. Untreated check 15.5a 5.5ab 11.3a 113.5a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Arthropod Management Tests Oxford University Press

Acaricide/Insecticide Evaluation, 1996

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Publisher
Oxford University Press
Copyright
© 1997 Entomological Society of America.
eISSN
2155-9856
DOI
10.1093/amt/22.1.4
Publisher site
See Article on Publisher Site

Abstract

Downloaded from https://academic.oup.com/amt/article-abstract/22/1/4/4639708 by DeepDyve user on 21 July 2020 4 Arthropod Management Tests, Vol. 22 A: POME FRUITS No. ERM/leaf No. STLM mines/5 min Rate Dates of Treatment form/acre lb AI application 11 Jul 30 Jul l.Endosulfan50WS B 1360g 1.50 P,PF Savey 50WP 85g 0.094 P Imidan 70WP 1360g 2.10 PF.1C Confirm 70WP + 198g 0.31 474ml 2C,3C,6C,7C 2.1b LatronB-1956 11.0a Imidan 70WP 1022g 1.58 4C,5C 2. EXP80667A 70WP 32g 0.05 PF,2C,3C 4.8ab 0.7c 3. EXP80667A 70WP 48g 0.075 PF,2C 7.6a 0.5c 64g 0.10 7.2a 0.8c 4. EXP80667A 70WP PF,2C,3C 852ml 0.67 5. Guthion 3F PF,1C,4C,5C Larvin 3.2SC 947ml 0.80 2C,3C,6C-8C 3.9ab 2.2b 6. Provado 1.6F 164ml 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 5.6a 1.8bc 7. Provado 70WG 45g 0.07 PF,1C Guthion 3F 852ml 0.67 PF,1C,4C,5C Guthion 3F + 426ml 0.34 Lannate 2.4LV 520ml 0.33 2C,3C,6C-8C 6.0a 2.5b 8. Provado 1.6F 164ml 0.07 PF,2C Guthion 3F 852ml 0.67 P F Confirm 70WP + 198g 0.31 LatronB-195 6 474ml 1C,2C,4C,6C 6.1a 0.8c 9. Untreated check 3.8ab 24.7a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious' Henry W. Hogmire and Tim Winfield (5A) European red mite (ERM); Panonychus ulmi (Koch) WV U Experiment Farm White apple leafhopper (WALH); Typhlocyba pomaria McAtee P.O. Box 609 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) Kearneysville, WV 25430 Phone: (304) 876-6353 FAX: (304) 876-6034 ACARICIDE/INSECTICIDE EVALUATION, 1996: This experiment was conducted in a 2.1 acre block of 11-yr-old trees on M 7A rootstock. The trees measured 11.5 ft. in height and 10 ft. in width and were planted at a spacing of 12 x 18 ft. The experimental design consisted of 4 replications of 9 to 12-tree plots (3 rows x 3 or 4 trees/rows) in a randomized block design. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates (stages) of application were 18 Apr (tight cluster) for Apollo and Damoil, 22 Apr (pink) for Savey, and 13 May (1 week after petal fall) for remaining treatments. Other materials applied separately to all treatments were COCS, Dithane, Guthion, Lorsban, Nova, Penncap-M, Penncozeb, Rubigan, Topsin-M, and Ziram. Treatments were evaluated by taking arthropod pest counts from the periphery of the center tree in each plot periodically during the season. Control of ERM was evaluated by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. WAL H control was determined by counting nymphs on the underside of 25 leaves/tree. Treatment effect against STLM was determined by counting tissue-feeding mines observed during a 5 minute period/tree. Agri-Mek + Damoil and Savey provided the best control of ERM. Vydate, Carzol, and Agri-Mek + Damoil were the most effective treatments against first generation WALH, and Carzol provided the greatest reduction of the second generation. Agri-Mek + Damoil provided the best control of STLM. Agri-Mek + Damoil was more effective than Agri-Mek alone against all pests. No phytotoxicity was observed in any treatments. No. ERM Accumulated mite-days Rate Dates of Treatment form/acre lb AI application 6 Jun 26 Jun 17 Jul 1 Aug 6 Jun-1 Aug Apollo 50SC 118 ml 0.125 18 Apr 1.5bc 11.7a 7.0bc O.lab 382. la b Damoil 11.361 18 Apr 1.5bc 6.5ab 25.1a 0b 599.4a Savey 50WP 85 g 0.094 22 Apr 0.2d 0.7c 5.5cd 0b 113.6bc 0.0125 2.6abc 2.7b 14.3abc 0b 339.5ab Agri-Mek 0.15EC 316 ml 13 May Agri-Mek 0.15EC + 316 ml 0.0125 3788 ml 13 May 1.7abc 0.3c 1.8d O.lab 55.3c Damoil Vydate 2L 1421 ml 0.75 13 May l.Ocd 5.6ab 20.7ab O.lab 497.7a 454 g 0.92 9.0a 22.5a O.lab Carzol 92SP 13 May 4.0a 629.7a 5.5ab 15.6abc Untreated check 4.0a 0.2a 436.8a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05). Downloaded from https://academic.oup.com/amt/article-abstract/22/1/4/4639708 by DeepDyve user on 21 July 2020 A: POME FRUITS Arthropod Management Tests, Vol. 22 5 Rate Dates of Treatment form/acre lb AI 11 Jun 29 Jul application 21 May 28 May 21 Aug Apollo 50SC 118 ml 0.125 18 Apr Damoil 11.361 18 Apr Savey 50WP 85 g 0.094 22 Apr Agri-Mek0.15EC 316 ml 0.0125 13 May 3.5a 2.8a 10.3ab 2.0c 124.5b Agri-Mek0.15EC + 316 ml 0.0125 13 May 2.0a 0.3b 4.5b Od 25.8c Damoil 3788 ml Vydate 2L 1421 ml 0.75 13 May 0.3b 0b 5.5ab 1.3c 128.8b Carzol 92SP 454 g 0.92 13 May 0.3b 2.8a 0.3c 11.5b 264.5ab Untreated check 5.5a 4.8a 12.8a 21.8a 423.3a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05). APPLE: Malus domestica Borkhauser 'Delicious', 'Golden Delicious' Henry W. Hogmire and Tim Winfield (6A) White apple leafhopper (WALH); Typhlocyba pomaria McAtee WV U Experiment Farm Potato leafhopper (PLH); Empoasca fabae Harris P.O. Box 609 European red mite (ERM); Panonychus ulmi (Koch) Kearneysville, W V 25430 Oriental fruit moth (OFM); Grapholita molesta (Busck) Phone: (304) 876-6353 Spotted tentiform leafminer (STLM); Phyllonorycter blancardella (F.) FAX: (304) 876-6034 SEVIN EVALUATION, 1996: This experiment was conducted in a 0.8 acre block of 16-yr-old trees on MM 106 rootstock. Trees measured 13.5 ft. in height and 14.5 ft. in width and were planted at a spacing of 18 X 24 ft. The experimental design consisted of a single plot of 5 rows X 5 trees/row for each of 2 spray treatments and a single 10 row X 3 trees/row untreated plot. Insecticides were applied as complete sprays to both sides of the trees with a Swanson DA500A airblast sprayer, which traveled at 2.3 mph and delivered a spray volume of 100 gpa. Dates of application were 7 May [petal fall (PF)], 22 May [first cover (IC)] , 11 Jun [second cover (2C)], 26 Jun [third cover (3C)], 11 Jul [fourth cover (4C)], 25 Jul [fifth cover (5C)], 7 Aug [sixth cover (6C)], 21 Aug [seventh cover (7C)], and 5 Sep [eighth cover (8C)]. Other materials applied separately to all treatments were Agri-Mycin, COCS, Dithane, Nova, Penncozeb, and Ziram. Treatment effect was determined by counting arthropod pests and injury on the periphery of 4 single-tree 'Delicious' repli­ cations in the center rows of each plot periodically during the season. Control of WALH was determined by counting nymphs on the underside of 25 leaves per tree. PLH was determined by counting injured terminals during a 5 minute period per tree. Effect of treatments against ERM was determined by sampling 25 leaves/tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope. Control of OFM was determined by counting injured terminals per tree. STLM control was evaluated by counting all tissue-feeding mines during a 5-minute period per tree. Provado and Sevin provided comparable control of WALH, but Provado resulted in a lower incidence of mines of STLM. There were no signifi­ cant differences among treatments in ERM levels at peak population. However, the treatment which included Sevin XLR PLUS had a higher ERM inci­ dence than the Guthion/Penncap-M treatment. Comparable control of OFM and PLH was provided by both spray treatments. No. WALH/25 leaves No. PLH injured terminals/5 min Rate Dates Treatment form/acre lb AI of application 21 May 23 May 20 Aug 20 Aug 1. Guthion 3F 852 ml 0.67 PF, IC, 4C, 5C Provado 1.6 F 164 ml 0.07 IC Penncap-M 2F 1420 ml 0.74 2C, 3C, 6C-8C 1.5a 0b 2.8ab 2.5b 2. Guthion 3F 852 ml 0.67 PF, 4C, 5C Sevin XLR PLUS 4SC 947 ml 1.00 IC , 3C, 6C Penncap-M 2F 1420 ml 0.74 2C,7C,8C 4.0a 0.3b 0.5b 1.8b 3. Untreated check 4.0a 1.8a 7.0a 123.3a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P < 0.05). Rate Dates of Treatment form/acre lb AI application 3 Jul 16 Jul 3 Jul 5 Aug 1. Guthion 3F 852 ml 0.67 PF , IC, 4C , 5C Provado 1.6F 164 ml 0.07 I C Penncap-M 2F 1420 ml 0.74 2C, 3C, 6C-8C 10.9a 2.2b 2.0b 50.3b 2. Guthion 3F 852 ml 0.67 PF, 4C , 5C Sevin XLR PLUS 4SC 947 ml 1.00 IC , 3C, 6C Penncap-M 2F 1420 ml 0.74 2C, 7C, 8C 14.9a 8.2a 0.8b 109.8a 3. Untreated check 15.5a 5.5ab 11.3a 113.5a — — Means in a given column followed by the same letter are not significantly different (Fisher's Protected LSD, P s 0.05).

Journal

Arthropod Management TestsOxford University Press

Published: Jan 1, 1997

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